1. The problem statement, all variables and given/known data http://imgur.com/qBXvrGz Above is a sketch of the circuit, a two stage symmetrical attenuator consisting of two symmetrical T attenuator pads connected in cascade, with the values that I have worked out for the resistors. The reduction is 15dB in the first stage, and 8dB in the second stage, giving a total reduction of 23dB. Given an input Voltage of 10mV, I must work out the output voltage. R_0 = 75 Ohms 2. Relevant equations 3. The attempt at a solution I am not sure that the solution is this simple, but this is my attempt. N = 10^(dB/20) = 10^(23/20) -> total attenuation of both stages used = 14.13 N=V1/V2 V2=V1/N V2 = (10x10^(-3))/14.13 V2 = 7.08x10^(-4) V I was possibly supposed to do this using an inverse matrix, however I am not sure of how to do this method. Can anyone tell me if this is correct, and if it is incorrect help me out? Thanks!